2597807

Information

• Patent Grant
• 2597807

• References
• Source

• Patent Number

  2,597,807

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1952
  72 years ago

• CPC

  • E21D15/60 - Devices for withdrawing props or chocks

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force
  • 299 - Mining or in situ disintegration of hard material
  • 405 - Hydraulic and earth engineering